Inventor · disambiguated record
Ronald L. Schwenninger
Also filed as: SCHWENNINGER RONALD L
23 granted patents·563 citations·filing 1974–2012
96Inventor score
Top patents by PatentIndex Score
23 records- 0198US4738938AMelting and vacuum refining of glass or the like and composition of sheetPPG INDUSTRIES INC·Filed 1986·Granted Apr 19, 1988·115 cites·54 claims
- 0296US4886539AMethod of vacuum refining of glassy materials with selenium foaming agentPPG INDUSTRIES INC·Filed 1989·Granted Dec 12, 1989·76 cites·16 claims
- 0396US4185982AMethod of measuring temperature of a sheet with a noncontacting-type pyrometerPPG INDUSTRIES INC·Filed 1978·Granted Jan 29, 1980·76 cites·7 claims
- 0489US4969942AGlass melter exhaust duct cleaning method and apparatusPPG INDUSTRIES INC·Filed 1990·Granted Nov 13, 1990·46 cites·18 claims
- 0585US4780122AVacuum refining of glass or the like with enhanced foamingPPG INDUSTRIES INC·Filed 1987·Granted Oct 25, 1988·35 cites·20 claims
- 0680US9133049B2Method of reducing redox ratio of molten glass and the glass made therebyPPG IND OHIO INC·Filed 2012·Granted Sep 15, 2015·4 cites·16 claims
- 0777US4704153AVacuum refining of glassy materials with controlled foamingPPG INDUSTRIES INC·Filed 1986·Granted Nov 3, 1987·32 cites·24 claims
- 0874US4633481AInduction heating vesselPPG INDUSTRIES INC·Filed 1984·Granted Dec 30, 1986·25 cites·5 claims
- 0971US4099952AMovable submersible dam barrier for use in a glass forming chamberPPG INDUSTRIES INC·Filed 1977·Granted Jul 11, 1978·17 cites·10 claims
- 1069US4600426AMetering device for molten glass and the likePPG INDUSTRIES INC·Filed 1984·Granted Jul 15, 1986·17 cites·9 claims
- 1163US4819859ALamination of oxide dispersion strengthened platinum and alloysPPG INDUSTRIES INC·Filed 1987·Granted Apr 11, 1989·18 cites·20 claims
- 1262US4114444AMeasuring glass surface temperature during annealingPPG INDUSTRIES INC·Filed 1977·Granted Sep 19, 1978·15 cites·5 claims
- 1360US4496387ATransition between batch preheating and liquefying stages apparatusPPG INDUSTRIES INC·Filed 1983·Granted Jan 29, 1985·13 cites·9 claims
- 1460US3941577AMethod and apparatus for making molten glassPPG INDUSTRIES INC·Filed 1974·Granted Mar 2, 1976·8 cites·18 claims
- 1559US4849004APulsed pressure method for vacuum refining of glassy materialsPPG INDUSTRIES INC·Filed 1988·Granted Jul 18, 1989·14 cites·19 claims
- 1655US3994710AMixer for use in glass melting furnacePPG INDUSTRIES INC·Filed 1975·Granted Nov 30, 1976·10 cites·22 claims
- 1750US4874313ARefractory clad lid for heating vesselPPG INDUSTRIES INC·Filed 1988·Granted Oct 17, 1989·6 cites·4 claims
- 1846US4322235AFloat glass forming chamber with horizontal heating elementsPPG INDUSTRIES INC·Filed 1980·Granted Mar 30, 1982·7 cites·17 claims
- 1945US4824462AFlow control means for molten glass or the likePPG INDUSTRIES INC·Filed 1987·Granted Apr 25, 1989·7 cites·16 claims
- 2043US4311508AFloat glass forming chamber with cast roofPPG INDUSTRIES INC·Filed 1980·Granted Jan 19, 1982·6 cites·7 claims
- 2140US5007950ACompressed, wedged float glass bottom structurePPG INDUSTRIES INC·Filed 1989·Granted Apr 16, 1991·7 cites·18 claims
- 2236US3964432AApparatus for coating continuously advancing substratePPG INDUSTRIES INC·Filed 1975·Granted Jun 22, 1976·7 cites·25 claims
- 2334US4260407AGas cushioned ice skate edge stretcherPPG INDUSTRIES INC·Filed 1979·Granted Apr 7, 1981·2 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →